Watch sizing platform



FIG. 1 is a perspective view of our new and ornamental design for a watch sizing platform;

FIG. 2 is a top plan view thereof;

FIG. 3 is a frontal elevation view thereof;

FIG. 4 is an end view taken from the right hand side of FIG. 1;

FIG. 5 is a rear elevation view thereof;

FIG. 6 is an end view as taken from the left hand side of FIG. 1; and,

FIG. 7 is a bottom view thereof. 

The ornamental design for watch sizing platform, as shown and described. 